5/5 rated by property managers & home owners!

Cellular Monitoring for Property Managers

Watch every unit for temperature, humidity, power, and leaks — without relying on tenant WiFi. Instant alerts the moment something's wrong, at one property or fifty.

Shop Monitor See how it works
Built-in Cellular Service
First Year of Service Included
30-day returns + Lifetime Warranty
Designed & Assembled in Brooklyn New York

Just $79.99/year after Year 1 — no hidden fees.

cellular monitor infront of a water heater showing app displaying temperature readings
Setup in Minutes

How it works

Plug it in

Our Monitor uses its own built-in cellular connection to send sensor readings from each property to the Hygge Apps cloud portal. No tenant WiFi or smartphone required.

Set your limits

Set the temperature and humidity range that means "something's wrong" for each unit, takes about a minute.

Get the alert

Receive text or email the moment something's off — no site visit required to find out.

AT&TT-Mobile
Smart home device with smartphone displaying weather app on a white background

Hygge Cellular Monitor

$119.05 Monitor
✓ No WiFi Needed — built-in cellular connection
✓ Instant Alerts for temperature, humidity, leaks & power outages
✓ 24/7 Monitoring — never miss a critical change
✓ Rechargeable Battery Backup — up to 6 days of runtime
✓ 1-Year Data History — easily export anytime
✓ No Fees for Year One — just $79.99/year after that
✓ No WiFi Needed — built-in cellular connection
✓ Instant Alerts for temperature, humidity, leaks & power outages
✓ 24/7 Monitoring — never miss a critical change
✓ Rechargeable Battery Backup — up to 6 days of runtime
✓ 1-Year Data History — easily export anytime
✓ 3-Meter Leak Detection Cable
✓ No Fees for Year One — just $79.99/year after that
✓ No WiFi Needed — built-in cellular connection
✓ Instant Alerts for temperature, humidity, leaks & power outages
✓ 24/7 Monitoring — never miss a critical change
✓ Rechargeable Battery Backup — up to 6 days of runtime
✓ 1-Meter External Temperature Probe
✓ No Fees for Year One — just $79.99/year after that
✓ No WiFi Needed — built-in cellular connection
✓ Instant Alerts for temperature, humidity, leaks & power outages
✓ 24/7 Monitoring — never miss a critical change
✓ Rechargeable Battery Backup — up to 6 days of runtime
✓ 1-Year Data History — easily export anytime
✓ 3-Meter Leak Detection Cable
✓ 1-Meter External Temperature Probe
✓ No Fees for Year One — just $79.99/year after that
Ships assembled in the US · 30-day returns · renews at $79/yr after year one, cancel any time.
View Specs
Use
Indoor use only
Operating temperature range
0–120°F (±1.8° accuracy)
Operating humidity range
0–100% RH (±2% accuracy)
Battery life
Up to 6 days (maximum runtime)
Battery
Internal rechargeable lithium-ion
Alert notification
Instant
Alert notification settings
Text, email, Slack, Microsoft Teams
Data collection interval
Every hour — alert conditions sent immediately
Data retention
1 year (exportable in CSV format)
Cellular service
AT&T & T-Mobile built-in SIM, 1 year included, renews at $79.99/yr
Cellular coverage
United States, Canada, and Mexico
Dimensions
3⅛" x 4" x ¾" (8cm x 10cm x 2cm)
App interface
Web and mobile
Leak detection cable (optional)
9.28ft (3 meters)
External temperature probe (optional)
3.28ft (1 meter), 0–175°F (±1°F), 0–100% RH (±2%)
Power requirement
5V 2A

$79.99 a year instead of paying $11,000 for repairs

$79.99/Yr

The flat renewal, after your first year free. One plan. No tiers to compare, no surprise fee buried in month three.

vs $11,000

What a burst pipe cost our founder the winter this company started — repairs to the electrical panel and 5 water heaters it sprayed.

How Hygge stacks up

Why Choose Hygge?

We offer not only the best product, but we are small company out of Brooklyn that works with our customers to constantly improve our offering.

Hygge Apps Competitor A Competitor B
Leak detection Yes — 3m cable No No
Extended temp probe Yes — 1m probe No Some models
Team / Slack alerts Yes No No
Battery backup 4–6 days 3 days Not specified
Renewal after included period $79.99/yr flat, 1 free year $6.99/mo, 1 free year $8.25–24.95/mo from day one

Pricing and specs reflect publicly listed figures and can move — worth a source check before this goes live.

What owners say

This is a rock-solid product. I've used these in an old mill building that I'm renovating to help guard against frozen pipes. With 3 foot thick walls, this is the building where cellphone signals go to die. Somehow, these units thump out a dependable signal. Worth every penny.

Mark Jarvis, second-home owner

Loved this so much, we ordered a second one! It is perfect for our outbuildings.

Sandie Geis, cabin owner

We needed this product to monitor water in our basement. It has already saved us from a sump pump failure! Highly recommend!!

Matthew Boucher, home owner

We ordered 1 unit to put in a vending machine to alert us of low temps, it works great so we ordered 13 more for our other vending machines. Easy set up.

R.E, vending machine owner

I use it in a few rental properties where I dont have access to tenant wifi to track temperature and other vitals from anywhere. Incredibly simple setup and solid build. Must have gadget!!

Gene Getman, property manager
Questions property managers actually ask

FAQs

Do I need WiFi to set this up?
No. It runs on cellular — AT&T and T-Mobile — so it works at properties with no internet at all, and keeps working if a tenant's WiFi goes down along with everything else.
What if a renter unplugs it or messes with the thermostat?
You'll get an alert the moment the reading crosses your line, whether that's the heat someone cranked up or the power that got cut off. It doesn't need anyone's cooperation to keep watching.
How fast do I actually get alerted?
It checks conditions every 60 seconds. If a reading crosses your limit, the alert goes out immediately — not on the next scheduled check-in.
What happens after the first year?
It renews at a flat $79.99/year. One plan, no tiers, no surprise upsell partway through — you can cancel any time and the device just stops sending, nothing else changes.
What happens if my monitor stops working while it is under a subscription?
We will mail you a replacement monitor with a label to return the original monitor.

Set it up once. Stop guessing what's happening at your properties.

One device, one flat plan, no contractor visit. Ships assembled in the US.

Get your monitor Contact Us